critical
9.8
CWE
119 120
Advisory Published
CVE Published
Updated

CVE-2019-16746: Buffer Overflow

First published: Wed Sep 11 2019(Updated: )

A flaw in the Linux kernel's WiFi beacon validation code was discovered. The code does not check the length of the variable length elements in the beacon head potentially leading to a buffer overflow. System availability, as well as data confidentiality and integrity, can be impacted by this vulnerability.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:3.10.0-1127.rt56.1093.el7
0:3.10.0-1127.rt56.1093.el7
redhat/kernel<0:3.10.0-1127.el7
0:3.10.0-1127.el7
redhat/kernel<0:4.18.0-193.el8
0:4.18.0-193.el8
IBM Data Risk Manager<=2.0.6
Android
Linux Kernel>=2.6.25<3.16.79
Linux Kernel>=3.17<4.4.197
Linux Kernel>=4.5<4.9.197
Linux Kernel>=4.10<4.14.149
Linux Kernel>=4.15<4.19.79
Linux Kernel>=4.20<5.3.6
Debian=8.0
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=19.04
Ubuntu=19.10
Fedora=30
SUSE Linux=15.1
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

https://marc.info/?l=linux-wireless&m=156901391225058&w=2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-16746?

    CVE-2019-16746 has a medium severity rating due to potential denial of service and data integrity issues.

  • How do I fix CVE-2019-16746?

    To fix CVE-2019-16746, update your Linux kernel to a recommended version as specified in the vendor's patch.

  • Which Linux distributions are affected by CVE-2019-16746?

    CVE-2019-16746 affects various Linux distributions, including Red Hat, Ubuntu, Debian, and Fedora, particularly those using vulnerable Linux kernel versions.

  • Is CVE-2019-16746 being exploited in the wild?

    As of now, there have been no confirmed reports of CVE-2019-16746 being actively exploited in the wild.

  • What are the potential impacts of CVE-2019-16746?

    The impacts of CVE-2019-16746 can include system crashes, denial of service, and potential security breaches affecting data confidentiality.

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